WO2005026774A1 - Umgebungsüberwachungssystem mit nachtsichteinheit und entfernungsmesseinheit - Google Patents
Umgebungsüberwachungssystem mit nachtsichteinheit und entfernungsmesseinheit Download PDFInfo
- Publication number
- WO2005026774A1 WO2005026774A1 PCT/DE2004/001844 DE2004001844W WO2005026774A1 WO 2005026774 A1 WO2005026774 A1 WO 2005026774A1 DE 2004001844 W DE2004001844 W DE 2004001844W WO 2005026774 A1 WO2005026774 A1 WO 2005026774A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- night vision
- lighting
- unit
- monitoring system
- image
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/88—Lidar systems specially adapted for specific applications
- G01S17/89—Lidar systems specially adapted for specific applications for mapping or imaging
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/88—Lidar systems specially adapted for specific applications
- G01S17/93—Lidar systems specially adapted for specific applications for anti-collision purposes
- G01S17/931—Lidar systems specially adapted for specific applications for anti-collision purposes of land vehicles
Definitions
- the invention relates to an environmental monitoring system with a night vision unit and a distance measuring unit, in particular for motor vehicles.
- Night vision units are known for military applications and are also discussed and tested for the improvement of traffic safety for motor vehicles.
- distance measuring units for assessing the surrounding situation in vehicles which determine distance information to objects in the target area in the direction of travel of the vehicle and, depending on this, regulate further variables in the motor vehicle, for example the speed and thus the distance to the vehicle in front, or impending collisions Objects in the direction of travel are recognized.
- the target area is usually actively illuminated with electromagnetic waves in order to enable the short reception times required for the high dynamics of the environment.
- electromagnetic waves In addition to radar systems, systems in the infrared range are particularly suitable.
- night vision receivers and distance measuring devices differ both in terms of the resolution and the type of lighting signal shape required.
- a high frequency is used for the distance measurement
- Modulation of the lighting signal is required, within which a high-resolution night vision camera can usually not work.
- the object of the invention is therefore to present a versatile and at the same time inexpensive environmental monitoring system. This object is solved by the features of claim 1. Advantageous further developments can be found in the subclaims.
- the night vision unit and the distance measuring unit have at least one common transmitter which emits pulse-like modulated electromagnetic waves for a predetermined transmission duration, the transmission duration, possibly also the modulation frequency and the exposure time of the
- Receiver for the night vision unit are selected so that the exposure time detects a • plurality of pulses of the pulse-shaped modulated electromagnetic waves and the sum of these pulses is evaluated for the night vision image.
- the exposure time required for the high-resolution image camera and the signal-to-noise ratio associated therewith can be achieved without the high-frequency modulation required for the distance measurement being impaired.
- the common transmitter generates a pulse signal, which has a lighting phase and a lighting pause, a high-frequency pulse sequence consisting of a number of individual pulses separated by short pauses being emitted within a lighting phase and interference light detection or suppression being able to take place during the lighting pause.
- the receivers of the night vision unit and the distance measuring unit are synchronized in time with the pulse signal of the transmitter, i.e. the exposure periods are controlled accordingly, the exposure duration of the night vision unit approximately corresponding to the length of a pulse sequence, that is to say over several individual pulses of the pulse sequence.
- the synchronization can take place internally by a signal from a control unit which clocks the common transmitter and the receiver.
- the pulse signal preferably has a sequence of lighting phases and
- Lighting pauses, the frequency of the high-frequency pulse train being changed between two lighting phases. As a result, the measuring range of the unique distance determination can be expanded.
- the high-frequency pulse sequence of the lighting phase can in each case be pseudo-noise-coded. In this way, interference from ambient light or in particular other vehicles with similar environmental monitoring systems can be avoided.
- the invention is particularly suitable for environmental surveillance systems in which an infrared-sensitive 3D distance image camera is used as the receiver for the distance measuring unit and, in contrast, a higher-resolution infrared image camera is used for the night vision unit.
- the distance image of the distance image camera and the high-resolution image of the infrared image camera are preferably compared in an evaluation unit of the night vision unit, and objects are recognized via predetermined patterns and these are optically highlighted in the image of the night vision unit.
- Figure 1 vehicle with an environmental monitoring system with night vision and distance measuring unit and a common IR transmitter
- FIG. 1 shows a vehicle 1 with an environmental monitoring system consisting of a night vision unit 2 and a distance measuring unit 3 and a common transmitter 4, here sketched as an infrared light source.
- the respective receivers 21 and 31 of the night vision unit 2 and the distance measuring unit 3 are sketched here in the immediate vicinity of the common transmitter 4 in the roof area behind the windshield of the vehicle, but can also be mounted elsewhere in the vehicle or integrated into a structural unit or even a semiconductor component which then has pixels sensitive to the high-frequency modulated pulse signal for distance measurement as well as pixels for image acquisition or can control the pixels accordingly. It is only essential that both reception modes can work with one and the same transmitter 4, in which a high-frequency modulated signal is emitted in the lighting phases, which is suitable for distance measurement, and the coloring or gray image information over several such pulses of the high-frequency modulated signal is recorded.
- a common pre-evaluation circuit 5 is provided in FIG. 1, which compares the gray image signal of the receiver 21 of the night vision unit 2 with the distance image of the receiver 31, recognizes objects by pattern comparison and can be optically highlighted in the night vision image, with the resolution for this the distance image does not necessarily have to correspond to that of the gray image.
- the night vision unit 3 has a display device (not shown in more detail) for visualizing the night vision image, for example for the driver.
- the type of illumination by the common transmitter 4 is to be explained in more detail with reference to FIG. 2.
- the transmitter 4 in this case an infrared source, emits a pulse signal which basically consists of lighting phases (here numbered 1 to 7) and lighting pauses in between, the pauses being able to be used to detect or suppress interference light.
- the lighting phase has a duration of T_1 and a plurality of high-frequency individual pulses, the length of the individual pulses T_0 and their spacing from one another being pseudo-noise-coded and therefore variable within each lighting phase here in this exemplary embodiment.
- the distance measuring unit can derive the distance to objects in the target area from the sequence of the high-frequency individual pulses, for example by correlating the transmitted and received signals.
- the particular advantage of the invention is that the receiver 21 of the night vision unit detects a plurality of individual pulses and integrates the amount of light over this time by means of a correspondingly long exposure duration, which here corresponds approximately to the length TJ of an illumination phase, and thus a brightness sufficient for a high-resolution image to achieve.
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Optical Radar Systems And Details Thereof (AREA)
- Measurement Of Optical Distance (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112004002226T DE112004002226D2 (de) | 2003-09-08 | 2004-08-19 | Umgebungsüberwachungssystem mit Nachtsichteinheit und Entfernungsmesseinheit |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10341671.4 | 2003-09-08 | ||
DE10341671A DE10341671A1 (de) | 2003-09-08 | 2003-09-08 | Umgebungsüberwachungssystem mit Nachtsichteinheit und Entfernungsmesseinheit |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005026774A1 true WO2005026774A1 (de) | 2005-03-24 |
Family
ID=34258539
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2004/001844 WO2005026774A1 (de) | 2003-09-08 | 2004-08-19 | Umgebungsüberwachungssystem mit nachtsichteinheit und entfernungsmesseinheit |
Country Status (2)
Country | Link |
---|---|
DE (2) | DE10341671A1 (de) |
WO (1) | WO2005026774A1 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1950583A1 (de) | 2007-01-29 | 2008-07-30 | Robert Bosch Gmbh | Nachtsichtsystem, insbesondere für ein Fahrzeug, und Verfahren zum Erstellen eines Nachtsichtbildes |
EP2703836A1 (de) * | 2012-08-30 | 2014-03-05 | Softkinetic Sensors N.V. | TOF-Beleuchtungssystem und TOF-Kamera und Betriebsverfahren mit Steuerungsmitteln zur Ansteuerung der in der Szene vorhandenen elektronischen Vorrichtungen |
EP2833160A4 (de) * | 2012-03-29 | 2015-11-04 | Stanley Electric Co Ltd | Vorrichtung zur erfassung von informationen über zu messende objekte |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11614517B2 (en) * | 2018-12-20 | 2023-03-28 | Nlight, Inc. | Reducing interference in an active illumination environment |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4007646A1 (de) * | 1990-03-10 | 1991-09-19 | Daimler Benz Ag | Anordnung zur verbesserung der sicht in fahrzeugen |
WO1999060629A1 (de) * | 1998-05-18 | 1999-11-25 | Rudolf Schwarte | Vorrichtung und verfahren zur erfassung von phase und amplitude elektromagnetischer wellen |
US20010050340A1 (en) * | 2000-01-18 | 2001-12-13 | Michael Holz | System for improving the visibility in vehicles |
DE10162009A1 (de) * | 2001-12-18 | 2003-07-03 | Adc Automotive Dist Control | Optisches System |
US20030155513A1 (en) * | 2002-02-21 | 2003-08-21 | Ford Global Technologies, Inc. | Active night vision system for vehicles employing short-pulse laser illumination and a gated camera for image capture |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3515428A1 (de) * | 1985-04-29 | 1986-10-30 | Carl Zeiss | Richt- und beobachtungseinrichtung |
DE3632774A1 (de) * | 1986-09-26 | 1988-03-31 | Siemens Ag | Einrichtung zur justierung und kontrolle eines in ein waermebildgeraet integrierten laserentfernungsmesser-senders |
US5329347A (en) * | 1992-09-16 | 1994-07-12 | Varo Inc. | Multifunction coaxial objective system for a rangefinder |
US6094304A (en) * | 1997-07-28 | 2000-07-25 | Litton Systems, Inc. | Multi-function day/night observation, ranging, and sighting device and method of its operation |
US6121600A (en) * | 1997-07-28 | 2000-09-19 | Litton Systems, Inc. | Integrated night vision device and laser range finder |
US6072565A (en) * | 1998-05-18 | 2000-06-06 | Litton Systems, Inc. | Night vision device with improved laser range finder |
-
2003
- 2003-09-08 DE DE10341671A patent/DE10341671A1/de not_active Withdrawn
-
2004
- 2004-08-19 DE DE112004002226T patent/DE112004002226D2/de not_active Ceased
- 2004-08-19 WO PCT/DE2004/001844 patent/WO2005026774A1/de active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4007646A1 (de) * | 1990-03-10 | 1991-09-19 | Daimler Benz Ag | Anordnung zur verbesserung der sicht in fahrzeugen |
WO1999060629A1 (de) * | 1998-05-18 | 1999-11-25 | Rudolf Schwarte | Vorrichtung und verfahren zur erfassung von phase und amplitude elektromagnetischer wellen |
US20010050340A1 (en) * | 2000-01-18 | 2001-12-13 | Michael Holz | System for improving the visibility in vehicles |
DE10162009A1 (de) * | 2001-12-18 | 2003-07-03 | Adc Automotive Dist Control | Optisches System |
US20030155513A1 (en) * | 2002-02-21 | 2003-08-21 | Ford Global Technologies, Inc. | Active night vision system for vehicles employing short-pulse laser illumination and a gated camera for image capture |
Non-Patent Citations (1)
Title |
---|
SCHWARTE R: "Dynamic 3d-vision", 2001 INTERNATIONAL SYMPOSIUM ON ELECTRON DEVICES FOR MICROWAVE AND OPTOELECTRONIC APPLICATIONS, 15 November 2001 (2001-11-15), pages 241 - 248, XP010570427 * |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1950583A1 (de) | 2007-01-29 | 2008-07-30 | Robert Bosch Gmbh | Nachtsichtsystem, insbesondere für ein Fahrzeug, und Verfahren zum Erstellen eines Nachtsichtbildes |
EP2833160A4 (de) * | 2012-03-29 | 2015-11-04 | Stanley Electric Co Ltd | Vorrichtung zur erfassung von informationen über zu messende objekte |
EP2703836A1 (de) * | 2012-08-30 | 2014-03-05 | Softkinetic Sensors N.V. | TOF-Beleuchtungssystem und TOF-Kamera und Betriebsverfahren mit Steuerungsmitteln zur Ansteuerung der in der Szene vorhandenen elektronischen Vorrichtungen |
WO2014033157A1 (en) * | 2012-08-30 | 2014-03-06 | Softkinetic Sensors Nv | Tof illumination system and tof camera and method for operating, with control means for driving electronic devices located in the scene |
CN103959091A (zh) * | 2012-08-30 | 2014-07-30 | 索弗特凯耐提克传感器股份有限公司 | 带有用于驱动位于场景中的电子设备的控制装置的tof照明系统及tof相机及操作方法 |
JP2015507173A (ja) * | 2012-08-30 | 2015-03-05 | ソフトキネティック センサー エヌブイ | シーンに位置する電子機器を駆動する制御手段を有するtof照明システム及びtofカメラと動作方法 |
KR101620971B1 (ko) | 2012-08-30 | 2016-05-13 | 소프트키네틱 센서스 엔브이 | 씬 내에 위치해 있는 전자 기기들을 구동시키기 위한 제어 수단을 지니는 tof 조명 시스템 및 tof 카메라 및 동작 방법 |
JP2017049234A (ja) * | 2012-08-30 | 2017-03-09 | ソフトキネティック センサー エヌブイ | シーンに位置する電子機器を駆動する制御手段を有するToF照明システムのための回路、方法、及び光源 |
US10027898B2 (en) | 2012-08-30 | 2018-07-17 | Softkinetic Sensors Nv | TOF illumination system and TOF camera and method for operating, with control means for driving electronic devices located in the scene |
Also Published As
Publication number | Publication date |
---|---|
DE10341671A1 (de) | 2005-04-07 |
DE112004002226D2 (de) | 2006-08-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2956799B1 (de) | Bestimmung einer entfernungsinformation für ein fahrzeug | |
EP2800982B1 (de) | Verfahren und vorrichtung zur radunabhängigen geschwindigkeitsmessung bei einem fahrzeug | |
DE102013008953B4 (de) | Verfahren zum Betreiben einer Radareinrichtung eines Fahrzeugs, insbesondere eines Kraftwagens, sowie Radareinrichtung für ein Fahrzeug, insbesondere einen Kraftwagen | |
DE102005012945A1 (de) | Verfahren und Vorrichtung zu Abstands- und Relativgeschwindigkeitsmessung mehrerer Objekte | |
DE102013002668A1 (de) | Leuchtdiodenlichtquelle für eine Beleuchtungseinrichtung eines Fahrzeugs | |
DE102013002683A1 (de) | Verfahren zur Bestimmung einer Entfernungsinformation und Datenübertragung | |
DE102013002671B4 (de) | Erfassung einer Entfernungsinformation für ein Fahrzeug | |
EP2767850B1 (de) | Bestimmung einer Position eines Objekts in einer Umgebung eines Fahrzeugs | |
DE102013002651A1 (de) | Bestimmung einer Entfernungsinformation für ein Fahrzeug | |
EP2322952B1 (de) | Verfahren zum Detektieren eines Objektes, Fahrerassistenzeinrichtung und Fahrzeug mit einer Fahrerassistenzeinrichtung | |
DE102019217627A1 (de) | Lidar mit distanzabhängiger vertikaler Auflösung | |
DE202006012637U1 (de) | Vorrichtung zum Kollisionsschutz zwischen aufeinanderfolgenden spurgeführten Fahrzeugen | |
DE102014118056A1 (de) | Optoelektronische Detektionseinrichtung fuer ein Kraftfahrzeug sowie Verwendung einer solchen Detektionseinrichtung | |
DE102016004305A1 (de) | Kraftfahrzeug mit mehreren an unterschiedlichen Einbaupositionen angeordneten Radarsensoren und Verfahren zum Betreiben mehrerer an unterschiedlichen Einbaupositionen eines Kraftfahrzeugs angeordneter Radarsensoren | |
DE19963005A1 (de) | Verfahren und Vorrichtung zur Erfassung und Auswertung von Objekten im Umgebungsbereich eines Fahrzeuges | |
DE10394168B4 (de) | Verfahren zur Kalibrierung von 3D-Bildaufnehmern | |
WO2005026774A1 (de) | Umgebungsüberwachungssystem mit nachtsichteinheit und entfernungsmesseinheit | |
DE102017220925A1 (de) | Verfahren zum Betreiben eines LIDAR-Sensors und LIDAR-Sensor | |
DE102015100910A1 (de) | Vorrichtung und Verfahren zum Erfassen von Objekten für ein Kraftfahrzeug | |
DE102018214338B4 (de) | Verfahren zur Bestimmung von unfallrelevanten Parametern mittels eines Radarsystems eines Fahrzeugs | |
WO2019110206A1 (de) | Lidar-system zur umfelderfassung und verfahren zum betreiben eines lidar-systems | |
DE102013018799A1 (de) | Verfahren und Vorrichtung zum optischen Bestimmen von Abständen zu Objekten, insbesondere zu Hindernissen für Fahrzeuge, in einem Überwachungsbereich | |
DE102017207729A1 (de) | Verfahren und Vorrichtung zur Detektion eines sich nicht in einem Erfassungsbereich einer Kamera befindlichen Objekts | |
WO2008071457A1 (de) | Verfahren und system zur positionsbestimmung | |
DE102019202327B4 (de) | Sensoranordnung und Verfahren für ein Fahrzeug zum Erfassen von Entfernungsinformationen |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BW BY BZ CA CH CN CO CR CU CZ DK DM DZ EC EE EG ES FI GB GD GE GM HR HU ID IL IN IS JP KE KG KP KZ LC LK LR LS LT LU LV MA MD MK MN MW MX MZ NA NI NO NZ PG PH PL PT RO RU SC SD SE SG SK SY TJ TM TN TR TT TZ UA UG US UZ VN YU ZA ZM |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): BW GH GM KE LS MW MZ NA SD SZ TZ UG ZM ZW AM AZ BY KG MD RU TJ TM AT BE BG CH CY DE DK EE ES FI FR GB GR HU IE IT MC NL PL PT RO SE SI SK TR BF CF CG CI CM GA GN GQ GW ML MR SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 1120040022266 Country of ref document: DE |
|
REF | Corresponds to |
Ref document number: 112004002226 Country of ref document: DE Date of ref document: 20060803 Kind code of ref document: P |
|
WWE | Wipo information: entry into national phase |
Ref document number: 112004002226 Country of ref document: DE |
|
122 | Ep: pct application non-entry in european phase |